Improvement in flour-bolting machines



.COGKSON.

JOHN c Improvement in FIour Bolting Machines.

Patented Dec.12, 1871.

Lgf 2.

lnvento.

Witnesses.

NITED STATES PATENT OFFICEe JOHN O. OOOKSON, OF LANCASTER, PENNSYLVANIA.

IMPROVEMENT IN FLOUR-BOLTING MACHINES.

Specification forming part of Letters Patent No. 121,708, dated December 12, 1871.

To all whom t may concern:

Beit known that I, JOHN C. GooKsoN, of Lancaster, in the county of Lancaster and State of Pennsylvania, have invented certain Improvements on a certain Flour-Bolting Machine patented to Samuel Hefelbower July 11, 1865, No. 48,684, and the following is a specification of said improvements.

The drawing accompanying the same neces` sarily shows the original patent with m y improvements in place.

Figure lis a vertical section, showing a change in chamber C, attached to the rear or tail-end of chamber B, constituting a suction-chamber with two distinct iiues and fans. The original separating chamber may be used additionally. Fig. 2 shows the arched dues or suction-chambers, and rear or tail-end of the machine. Fig. 3 is a side elevation to show the elevators on the machine. Fig. 4 shows the head-end, with the upper section hinged, tbrming a lid.

The fan and win gs E, prolongation c, partitions G, conveyer H, andldischarging orilices l are substantially the same. I use each partition double-that is, the segments to which the cloth or wire-screening is attached are made and inserted side by side, so that one segment or portion of the stationary bolt for each division can be replaced by another, and thereby ada-pt the machine to a variety of uses in a mill, besides offering a greater facility in the construction by not only forming the same in two half-circles along the entire length, but also each half upon separate segments. Fig. 1 is divided into six divisions; these divisions may be more numerous, according to the length ofthe machine. From No. 1 the :Hour is taken pure and free from specks, and carried off in the ordinary manner. From No. 2 the second quality of llour is returned to the head ofthe machine as usual. The better por tions of 3 and 4 are returned by the side elevators l? P to No. 2. The better and richer middlings in No. 5 are conveyed into the inner sucto the end of the machine, and by a tube, s, dis charged into the outer liuc 0f the suction-cham bers O. The fan-shaft Dr has a fan on it in each iiue. There is an adjustable door, d, to each set of wings, so that more draught or force may be given, although the speed is the same. These tlues have inclined arresters z, over which heavier portions fall into an outer chamber, T, on the one vertical leg of the arched chambers O, the light bran having been previously blown out from the branchamber No. 7, (which is closed below,) and has a side spout through which the bran escapes. The fine fuzzy particles, still combined with the middlings, are now completely removed by the suction-fans in their action on the materials in the flues, giving the various grades, which fall nto separate compartments, to be conveyed or used as circumstances may dictate. This arrangement of separate chambers, open below to a continuous conveyer, the bolting-cloths to each chamber being on separate segments-which may be changed at pleasure in a stationary machine or bolting apparatus, in which the material is tated in the manner originally shown by means of the additional improvements of the side elevators l P and double suction-chamber C with the spouts R S-adapts this machine admirably for rebolting or redressing liour, purifying middlings, and various other purposes; and makes this combination a valuable acquisition to millers.

A brush attached to the wings, in sections of wire screening, will aid in cleaning offal of flour and middlings.

Vhat l claim as my invention, and desire to secure by Letters Patent, is

The side elevaters 1) l? and spouts R and S, in combination with the double nues or suctiontion-chambers C, substantially as shown and for the purpose specified.

JOHN C. OOOKSON.

Witnesses:

W. B. WILEY, 

